Ultrasonic wave generator and floating or suspended particle collecting apparatus using the same.

摘要

An ultrasonic wave of high sound pressure which implements high dust collection effect is generated, and floating or suspended particles such as dust are effectively removed using the ultrasonic wave. A floating or suspended particle collecting apparatus includes a hollow pipe into which fluid containing floating or suspended particles is introduced, a cylindrical diaphragm which is disposed inside of the pipe, and whose dimension is set in such a manner that a sound field generated inside of the diaphragm when the diaphragm is resonated at a natural frequency thereby keeping in a resonant state, and an ultrasonic driving source for resonating the diaphragm at the natural frequency to radiate ultrasonic waves from the diaphragm. The floating or suspended particles are collected by the strong ultrasonic waves generated in the floating or suspended particle collecting apparatus. <IMAGE>